Wheel for traction-engines.



F. R. NYBERG.

' WHEEL FOR mcnou mamas.

. I APPLICATION HLED AUG.9. I915- v 1 167 205 Patented Jan. 4, 1916.

2 SHEETS-SHEET I.

A TTORIVE Y8 F. R. NYB'ERG. WHEEL FOR TRACTION ENGINES. APPLICATON FILED Aus.9. m5.

Patented Jan. 4, 1916.

2 SHEETS-SHEET 2.

WITNESSES:

A TTORNE Y8 UNITED STATES PATENT OFFICE.

FRANK RUDOLPH NYBERG, OF LAMAR, COLORADO, ASSIGNOR OF ONE-HALF TO GEORGE J. GARVIN, OF LAMAR, COLORADO.

WHEEL FOR TRACTION-ENGINES.

Specification of Letters Patent.

Patented Jan. 4, 1916.

Application filed August 9, 1915. Serial No. 44,556.

My invention is an improvement in wheels for traction engines, and the invention has for its object to provide mechanism in connection with the usual drive wheel, for permitting the mud cleats usually used on the periphery of the wheel to be dispensed. with, and wherein the said mechanism is-so arranged that it may be brought into and out of operative position whenever desired, and wherein a series of holding dogs is provided, movable radially of the wheel, and operated by a cam, to cause them to protrude at any desired point in the periphery of the wheel, and wherein other mechanism ,is provided in connection with the dogs for preventing injury to the machiner of the engine or to the wheels or dogs rom solid bodies in the road, as for instance, rocks, stumps and the like.

In the drawings: Figure 1 is a side view of a wheel provided with the attachment; Fig. 2 is a section on the liiie 22 oi Fig. 6; Figs. 3, 4, 5 and 6 are sections on the lines 3-3, 4'4, 5-5 and 66 of Fig. 1,

respectively, Fig. 6 looking in the direction of the arrow adjacent .to the line; Fig. 7 is a partial section inthe plane of the wheel, and Figs. 8, 9, 10 and 11 are sections on the lines 88, 9-9, 10-10 and 1111, respectively, of Fig. 7.

l The present embodiment of the invention is shown in connection with a wheel having a rim 1, a hub 2, and spokes 3 and 3, connecting the hub and the rim. ,Two series of spokes are provided, the series -3 being inclined, while the series 3 are perpendicular to both rim and wheel. The hub 2 is provided with annular ribs 4 and 4, and the spokes of the, series 3 and 3 are connected at their inner ends to the ribs 4 and 4, respectively, by rivets 5 or the like, and their outer ends are provided with lateral lugs 6, which abut against the inner. surface of the rim 1, and are secured-thertoin afiy suitable manner.

It will be noticed from an mspection'of Fig. 6, that the rib 4-is at one edge of the rim 1 of the wheel, while the rib 4 is at approximately the center of the width of the rim, so that a portion of the interior of the wheel between the rim 1 and the hub. 2 is left free and unobstructed for the insertion of the attachment. The attachment comprises a ring 7, having a central-openin fitting the hub 2, at the outer side of the ri 4, and the ring isprovided at its inner face with a marginal flange 8. A disk 9 is fitted on the hub outside of the ring 7, and this disk extends beyond the periphery of the ring 7 to a point flush with the periphery of the flange 8. The ring 7 fits against the outer faces of the spokes, and an eccentric 10 is journaled. on the ring between the flange 8 and the disk 9. The eccentric 10 is mounted to rotate on the ring, or to move angularly with respect thereto, and the said eccentric is provided with a marginal flange 11 at its inner face and an eccentric rin 12 .is fitted onto the periphery of the ring at the outer face of the eccentric 10, and the disk 9 before mentioned fits outside of the ring 12, to hold the ring in place. The ring 12 is similar to the disk 10 and of the same diameter as the diameter of the eccentric 10 at the flange 11.

The disk 9 is'clamped to the spokes 3, by means of clips 13, of U-shape, the arms of the clip passing through the ring 7 and the disk 9, with the body of the clip. transversely of the spoke 3", and the arms are engaged by nuts 14 to clamp the parts in place. A ring 15 is arranged concentric to the wheel, near the rim 1, and a ring 16 is arranged between the ring 15 and the eccentric. The ring 15 has its wide dimension transverse to the plane of the wheel, while the wide dimension of the ring 16 is parallel with the wheel. These rings 15 and 16 support dogs for gripping the roadway. Each of the dogs is seetional, consisting of an outer section 17 and an inner section 17, and the sections are connected together in a manner to be described. Each dog 17-17 is mounted to slide in a substantially c lindrical casing 18, which is supported by t e rings 15 and 16. The inner end of each casing is su ported by the ring 16, while the outer en of each casing is su ported by the ring 15.

ubstantia'lly u-shaped clips 19 are provided for connecting the casing to the ring urea in the r ng oi IQWS Oi mm or 1: I dip oii m zed 1m away 1mm into contact mm 1 oneet i :1 i l thyough the dip the spolie and the o nuts ouLsh ie of the n, and no portion w m and are 21:

Ami dogs are of a the owesid portion of o outer su we of the ea xdem' Hm? when these won of the eccenien flied beyond c2111: moved of :1 link 1.11: eocenand ny means of the 'u' may move the eccentric on on flu: qwnm'n' Cesires to mow the ea utrio E 1 a, 0 1h: dog:

i; :Lh the hlghesr, n below the m ezzeh.

dowmnud at Lhe Q Wm (e extend in eXLemh' i uuhdllmn. mini uelhi'e ended he 1 1, and Wiil dig e of :'u? gmuml. thus insuring Mimi wiil um; slip. YVhen A no hugel- \iirif'ii l to use the dogs, the eoeemrie is m 'wi w'mh iis highest point upard or above me hub. The are now viuieluied :nl Lhe top of the wheel, and since Lhey are :liw-

men 1g when the wheel is mm'ing, there no chance of a dog becoming jammed or smck in its easing, so that it Will 210$ move when :he ope 'ator Wishes the same move 'i iw was i ehus he kept free in 11mm} and. in. 7 possible condition hiwmh} W j when extended strike ohsu'wiion. the spring 31 {2mg the dog section 37 to wing 31 of snfi'icient C A. dug section in extended 05 m 110:; mules omimny conditions.

1):; trance of th vent slip'pin form of :1 co; 1; LT. IEHH the o:

h of 1 i ewtiou ha 1 e Foch m ihe spaced apart from each other, a slidable connection between adjacent ends of the dog sections to permit them to move toward and from each other and longitudinally of the casing, means adjustable angularly of the wheel for engaging the inner ends of the dogs to extend the dogs beyond the periphery of the wheel, and springs forcing the dogs inwardly.

2. The combination with a wheel, of a series of tubular casings arranged radially of the wheel in spaced relation. a sectional dog arranged in each casing and movable longitudinally thereof, each dog consisting of an inner and an outer section, a slidable connection between the sections of each dog and slidably connected with the casing, a spring arranged between the sections of each dog and adapted to be compressed when the outer end of the dog meets with an obstruction and normally holding them extended, an eccentric journaled on the hub, the inner ends of the dogs engaging the periphery of the eccentric, and said eccentric extending the dogs beyond the periphery of the casing when the highest portion thereof is in engagement with the said inner ends, a common means for moving the eccentric angularly to cause the dogs to be extended at any point in the periphery of the wheel, and for holding the eccentric from movement with Copies of this patent may be obtained for the wheel, and springs forcing the dogs inwardly.

3. The combination with a wheel, of a series of tubular casings supported by the wheel radially thereof, a dog mounted in each casing to move longitudinally thereof, an eccentric journaled coaxial with the wheel and engaging the dogs at their inner ends, the rim having an opening for each dog for permitting the dog to pass at its outer end beyond the rim, a stop adjustably mounted on each dog and near the inner side of the rim and a spring between each stop and the rim and normally pressing the dog inward.

4. The combination with a wheel of a series of tubular casings supported by the wheel radially thereof, a pair of coaxial inner and outer rings between the rim and the hub, a clip connecting the inner end of each casing to the inner ring, a sectional clip connecting the outer end of each casing to the outer ring, an eccentric journaled on the hub, a dog in each casing engaging the eccentric at its inner end, springs pressing the dogs in- Wardly, and means for holding the eccentric from movement and for adjusting the same angularly with respect to the wheel.

FRANK RUDOLPH NYBERG. VVitnessed by GRovER L. CARRIco, CLARENCE P. CHILDRESs.

five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

